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35ea11ff HV |
1 | /* |
2 | * | |
3 | * V 4 L 2 D R I V E R H E L P E R A P I | |
4 | * | |
5 | * Moved from videodev2.h | |
6 | * | |
7 | * Some commonly needed functions for drivers (v4l2-common.o module) | |
8 | */ | |
9 | #ifndef _V4L2_IOCTL_H | |
10 | #define _V4L2_IOCTL_H | |
11 | ||
12 | #include <linux/poll.h> | |
13 | #include <linux/fs.h> | |
14 | #include <linux/device.h> | |
15 | #include <linux/mutex.h> | |
16 | #include <linux/compiler.h> /* need __user */ | |
17 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
7e0a16f6 | 18 | #define __MIN_V4L1 |
35ea11ff HV |
19 | #include <linux/videodev.h> |
20 | #else | |
21 | #include <linux/videodev2.h> | |
22 | #endif | |
23 | ||
d3d7c963 SA |
24 | struct v4l2_fh; |
25 | ||
a399810c HV |
26 | struct v4l2_ioctl_ops { |
27 | /* ioctl callbacks */ | |
28 | ||
29 | /* VIDIOC_QUERYCAP handler */ | |
30 | int (*vidioc_querycap)(struct file *file, void *fh, struct v4l2_capability *cap); | |
31 | ||
32 | /* Priority handling */ | |
33 | int (*vidioc_g_priority) (struct file *file, void *fh, | |
34 | enum v4l2_priority *p); | |
35 | int (*vidioc_s_priority) (struct file *file, void *fh, | |
36 | enum v4l2_priority p); | |
37 | ||
38 | /* VIDIOC_ENUM_FMT handlers */ | |
39 | int (*vidioc_enum_fmt_vid_cap) (struct file *file, void *fh, | |
40 | struct v4l2_fmtdesc *f); | |
41 | int (*vidioc_enum_fmt_vid_overlay) (struct file *file, void *fh, | |
42 | struct v4l2_fmtdesc *f); | |
43 | int (*vidioc_enum_fmt_vid_out) (struct file *file, void *fh, | |
44 | struct v4l2_fmtdesc *f); | |
a399810c HV |
45 | int (*vidioc_enum_fmt_type_private)(struct file *file, void *fh, |
46 | struct v4l2_fmtdesc *f); | |
47 | ||
48 | /* VIDIOC_G_FMT handlers */ | |
49 | int (*vidioc_g_fmt_vid_cap) (struct file *file, void *fh, | |
50 | struct v4l2_format *f); | |
51 | int (*vidioc_g_fmt_vid_overlay)(struct file *file, void *fh, | |
52 | struct v4l2_format *f); | |
53 | int (*vidioc_g_fmt_vid_out) (struct file *file, void *fh, | |
54 | struct v4l2_format *f); | |
55 | int (*vidioc_g_fmt_vid_out_overlay)(struct file *file, void *fh, | |
56 | struct v4l2_format *f); | |
57 | int (*vidioc_g_fmt_vbi_cap) (struct file *file, void *fh, | |
58 | struct v4l2_format *f); | |
59 | int (*vidioc_g_fmt_vbi_out) (struct file *file, void *fh, | |
60 | struct v4l2_format *f); | |
61 | int (*vidioc_g_fmt_sliced_vbi_cap)(struct file *file, void *fh, | |
62 | struct v4l2_format *f); | |
63 | int (*vidioc_g_fmt_sliced_vbi_out)(struct file *file, void *fh, | |
64 | struct v4l2_format *f); | |
65 | int (*vidioc_g_fmt_type_private)(struct file *file, void *fh, | |
66 | struct v4l2_format *f); | |
67 | ||
68 | /* VIDIOC_S_FMT handlers */ | |
69 | int (*vidioc_s_fmt_vid_cap) (struct file *file, void *fh, | |
70 | struct v4l2_format *f); | |
71 | int (*vidioc_s_fmt_vid_overlay)(struct file *file, void *fh, | |
72 | struct v4l2_format *f); | |
73 | int (*vidioc_s_fmt_vid_out) (struct file *file, void *fh, | |
74 | struct v4l2_format *f); | |
75 | int (*vidioc_s_fmt_vid_out_overlay)(struct file *file, void *fh, | |
76 | struct v4l2_format *f); | |
77 | int (*vidioc_s_fmt_vbi_cap) (struct file *file, void *fh, | |
78 | struct v4l2_format *f); | |
79 | int (*vidioc_s_fmt_vbi_out) (struct file *file, void *fh, | |
80 | struct v4l2_format *f); | |
81 | int (*vidioc_s_fmt_sliced_vbi_cap)(struct file *file, void *fh, | |
82 | struct v4l2_format *f); | |
83 | int (*vidioc_s_fmt_sliced_vbi_out)(struct file *file, void *fh, | |
84 | struct v4l2_format *f); | |
85 | int (*vidioc_s_fmt_type_private)(struct file *file, void *fh, | |
86 | struct v4l2_format *f); | |
87 | ||
88 | /* VIDIOC_TRY_FMT handlers */ | |
89 | int (*vidioc_try_fmt_vid_cap) (struct file *file, void *fh, | |
90 | struct v4l2_format *f); | |
91 | int (*vidioc_try_fmt_vid_overlay)(struct file *file, void *fh, | |
92 | struct v4l2_format *f); | |
93 | int (*vidioc_try_fmt_vid_out) (struct file *file, void *fh, | |
94 | struct v4l2_format *f); | |
95 | int (*vidioc_try_fmt_vid_out_overlay)(struct file *file, void *fh, | |
96 | struct v4l2_format *f); | |
97 | int (*vidioc_try_fmt_vbi_cap) (struct file *file, void *fh, | |
98 | struct v4l2_format *f); | |
99 | int (*vidioc_try_fmt_vbi_out) (struct file *file, void *fh, | |
100 | struct v4l2_format *f); | |
101 | int (*vidioc_try_fmt_sliced_vbi_cap)(struct file *file, void *fh, | |
102 | struct v4l2_format *f); | |
103 | int (*vidioc_try_fmt_sliced_vbi_out)(struct file *file, void *fh, | |
104 | struct v4l2_format *f); | |
105 | int (*vidioc_try_fmt_type_private)(struct file *file, void *fh, | |
106 | struct v4l2_format *f); | |
107 | ||
108 | /* Buffer handlers */ | |
109 | int (*vidioc_reqbufs) (struct file *file, void *fh, struct v4l2_requestbuffers *b); | |
110 | int (*vidioc_querybuf)(struct file *file, void *fh, struct v4l2_buffer *b); | |
111 | int (*vidioc_qbuf) (struct file *file, void *fh, struct v4l2_buffer *b); | |
112 | int (*vidioc_dqbuf) (struct file *file, void *fh, struct v4l2_buffer *b); | |
113 | ||
114 | ||
115 | int (*vidioc_overlay) (struct file *file, void *fh, unsigned int i); | |
116 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
117 | /* buffer type is struct vidio_mbuf * */ | |
118 | int (*vidiocgmbuf) (struct file *file, void *fh, struct video_mbuf *p); | |
119 | #endif | |
120 | int (*vidioc_g_fbuf) (struct file *file, void *fh, | |
121 | struct v4l2_framebuffer *a); | |
122 | int (*vidioc_s_fbuf) (struct file *file, void *fh, | |
123 | struct v4l2_framebuffer *a); | |
124 | ||
125 | /* Stream on/off */ | |
126 | int (*vidioc_streamon) (struct file *file, void *fh, enum v4l2_buf_type i); | |
127 | int (*vidioc_streamoff)(struct file *file, void *fh, enum v4l2_buf_type i); | |
128 | ||
129 | /* Standard handling | |
130 | ENUMSTD is handled by videodev.c | |
131 | */ | |
132 | int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm); | |
133 | int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm); | |
134 | int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a); | |
135 | ||
136 | /* Input handling */ | |
137 | int (*vidioc_enum_input)(struct file *file, void *fh, | |
138 | struct v4l2_input *inp); | |
139 | int (*vidioc_g_input) (struct file *file, void *fh, unsigned int *i); | |
140 | int (*vidioc_s_input) (struct file *file, void *fh, unsigned int i); | |
141 | ||
142 | /* Output handling */ | |
143 | int (*vidioc_enum_output) (struct file *file, void *fh, | |
144 | struct v4l2_output *a); | |
145 | int (*vidioc_g_output) (struct file *file, void *fh, unsigned int *i); | |
146 | int (*vidioc_s_output) (struct file *file, void *fh, unsigned int i); | |
147 | ||
148 | /* Control handling */ | |
149 | int (*vidioc_queryctrl) (struct file *file, void *fh, | |
150 | struct v4l2_queryctrl *a); | |
151 | int (*vidioc_g_ctrl) (struct file *file, void *fh, | |
152 | struct v4l2_control *a); | |
153 | int (*vidioc_s_ctrl) (struct file *file, void *fh, | |
154 | struct v4l2_control *a); | |
155 | int (*vidioc_g_ext_ctrls) (struct file *file, void *fh, | |
156 | struct v4l2_ext_controls *a); | |
157 | int (*vidioc_s_ext_ctrls) (struct file *file, void *fh, | |
158 | struct v4l2_ext_controls *a); | |
159 | int (*vidioc_try_ext_ctrls) (struct file *file, void *fh, | |
160 | struct v4l2_ext_controls *a); | |
161 | int (*vidioc_querymenu) (struct file *file, void *fh, | |
162 | struct v4l2_querymenu *a); | |
163 | ||
164 | /* Audio ioctls */ | |
165 | int (*vidioc_enumaudio) (struct file *file, void *fh, | |
166 | struct v4l2_audio *a); | |
167 | int (*vidioc_g_audio) (struct file *file, void *fh, | |
168 | struct v4l2_audio *a); | |
169 | int (*vidioc_s_audio) (struct file *file, void *fh, | |
170 | struct v4l2_audio *a); | |
171 | ||
172 | /* Audio out ioctls */ | |
173 | int (*vidioc_enumaudout) (struct file *file, void *fh, | |
174 | struct v4l2_audioout *a); | |
175 | int (*vidioc_g_audout) (struct file *file, void *fh, | |
176 | struct v4l2_audioout *a); | |
177 | int (*vidioc_s_audout) (struct file *file, void *fh, | |
178 | struct v4l2_audioout *a); | |
179 | int (*vidioc_g_modulator) (struct file *file, void *fh, | |
180 | struct v4l2_modulator *a); | |
181 | int (*vidioc_s_modulator) (struct file *file, void *fh, | |
182 | struct v4l2_modulator *a); | |
183 | /* Crop ioctls */ | |
184 | int (*vidioc_cropcap) (struct file *file, void *fh, | |
185 | struct v4l2_cropcap *a); | |
186 | int (*vidioc_g_crop) (struct file *file, void *fh, | |
187 | struct v4l2_crop *a); | |
188 | int (*vidioc_s_crop) (struct file *file, void *fh, | |
189 | struct v4l2_crop *a); | |
190 | /* Compression ioctls */ | |
191 | int (*vidioc_g_jpegcomp) (struct file *file, void *fh, | |
192 | struct v4l2_jpegcompression *a); | |
193 | int (*vidioc_s_jpegcomp) (struct file *file, void *fh, | |
194 | struct v4l2_jpegcompression *a); | |
195 | int (*vidioc_g_enc_index) (struct file *file, void *fh, | |
196 | struct v4l2_enc_idx *a); | |
197 | int (*vidioc_encoder_cmd) (struct file *file, void *fh, | |
198 | struct v4l2_encoder_cmd *a); | |
199 | int (*vidioc_try_encoder_cmd) (struct file *file, void *fh, | |
200 | struct v4l2_encoder_cmd *a); | |
201 | ||
202 | /* Stream type-dependent parameter ioctls */ | |
203 | int (*vidioc_g_parm) (struct file *file, void *fh, | |
204 | struct v4l2_streamparm *a); | |
205 | int (*vidioc_s_parm) (struct file *file, void *fh, | |
206 | struct v4l2_streamparm *a); | |
207 | ||
208 | /* Tuner ioctls */ | |
209 | int (*vidioc_g_tuner) (struct file *file, void *fh, | |
210 | struct v4l2_tuner *a); | |
211 | int (*vidioc_s_tuner) (struct file *file, void *fh, | |
212 | struct v4l2_tuner *a); | |
213 | int (*vidioc_g_frequency) (struct file *file, void *fh, | |
214 | struct v4l2_frequency *a); | |
215 | int (*vidioc_s_frequency) (struct file *file, void *fh, | |
216 | struct v4l2_frequency *a); | |
217 | ||
218 | /* Sliced VBI cap */ | |
219 | int (*vidioc_g_sliced_vbi_cap) (struct file *file, void *fh, | |
220 | struct v4l2_sliced_vbi_cap *a); | |
221 | ||
222 | /* Log status ioctl */ | |
223 | int (*vidioc_log_status) (struct file *file, void *fh); | |
224 | ||
225 | int (*vidioc_s_hw_freq_seek) (struct file *file, void *fh, | |
226 | struct v4l2_hw_freq_seek *a); | |
227 | ||
228 | /* Debugging ioctls */ | |
229 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
230 | int (*vidioc_g_register) (struct file *file, void *fh, | |
aecde8b5 | 231 | struct v4l2_dbg_register *reg); |
a399810c | 232 | int (*vidioc_s_register) (struct file *file, void *fh, |
aecde8b5 | 233 | struct v4l2_dbg_register *reg); |
a399810c HV |
234 | #endif |
235 | int (*vidioc_g_chip_ident) (struct file *file, void *fh, | |
aecde8b5 | 236 | struct v4l2_dbg_chip_ident *chip); |
a399810c | 237 | |
74d83fa0 MCC |
238 | int (*vidioc_enum_framesizes) (struct file *file, void *fh, |
239 | struct v4l2_frmsizeenum *fsize); | |
240 | ||
241 | int (*vidioc_enum_frameintervals) (struct file *file, void *fh, | |
242 | struct v4l2_frmivalenum *fival); | |
243 | ||
b6456c0c MK |
244 | /* DV Timings IOCTLs */ |
245 | int (*vidioc_enum_dv_presets) (struct file *file, void *fh, | |
246 | struct v4l2_dv_enum_preset *preset); | |
247 | ||
248 | int (*vidioc_s_dv_preset) (struct file *file, void *fh, | |
249 | struct v4l2_dv_preset *preset); | |
250 | int (*vidioc_g_dv_preset) (struct file *file, void *fh, | |
251 | struct v4l2_dv_preset *preset); | |
252 | int (*vidioc_query_dv_preset) (struct file *file, void *fh, | |
253 | struct v4l2_dv_preset *qpreset); | |
254 | int (*vidioc_s_dv_timings) (struct file *file, void *fh, | |
255 | struct v4l2_dv_timings *timings); | |
256 | int (*vidioc_g_dv_timings) (struct file *file, void *fh, | |
257 | struct v4l2_dv_timings *timings); | |
258 | ||
d3d7c963 SA |
259 | int (*vidioc_subscribe_event) (struct v4l2_fh *fh, |
260 | struct v4l2_event_subscription *sub); | |
261 | int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh, | |
262 | struct v4l2_event_subscription *sub); | |
263 | ||
a399810c | 264 | /* For other private ioctls */ |
069b7479 | 265 | long (*vidioc_default) (struct file *file, void *fh, |
a399810c HV |
266 | int cmd, void *arg); |
267 | }; | |
268 | ||
269 | ||
2864462e MCC |
270 | /* v4l debugging and diagnostics */ |
271 | ||
272 | /* Debug bitmask flags to be used on V4L2 */ | |
273 | #define V4L2_DEBUG_IOCTL 0x01 | |
274 | #define V4L2_DEBUG_IOCTL_ARG 0x02 | |
275 | ||
276 | /* Use this macro for non-I2C drivers. Pass the driver name as the first arg. */ | |
277 | #define v4l_print_ioctl(name, cmd) \ | |
278 | do { \ | |
279 | printk(KERN_DEBUG "%s: ", name); \ | |
280 | v4l_printk_ioctl(cmd); \ | |
281 | } while (0) | |
282 | ||
283 | /* Use this macro in I2C drivers where 'client' is the struct i2c_client | |
284 | pointer */ | |
285 | #define v4l_i2c_print_ioctl(client, cmd) \ | |
286 | do { \ | |
287 | v4l_client_printk(KERN_DEBUG, client, ""); \ | |
288 | v4l_printk_ioctl(cmd); \ | |
289 | } while (0) | |
290 | ||
35ea11ff HV |
291 | /* Video standard functions */ |
292 | extern const char *v4l2_norm_to_name(v4l2_std_id id); | |
51f0b8d5 | 293 | extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod); |
35ea11ff HV |
294 | extern int v4l2_video_std_construct(struct v4l2_standard *vs, |
295 | int id, const char *name); | |
296 | /* Prints the ioctl in a human-readable format */ | |
297 | extern void v4l_printk_ioctl(unsigned int cmd); | |
298 | ||
299 | /* names for fancy debug output */ | |
300 | extern const char *v4l2_field_names[]; | |
301 | extern const char *v4l2_type_names[]; | |
302 | ||
303 | /* Compatibility layer interface -- v4l1-compat module */ | |
069b7479 | 304 | typedef long (*v4l2_kioctl)(struct file *file, |
35ea11ff HV |
305 | unsigned int cmd, void *arg); |
306 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
069b7479 | 307 | long v4l_compat_translate_ioctl(struct file *file, |
35ea11ff HV |
308 | int cmd, void *arg, v4l2_kioctl driver_ioctl); |
309 | #else | |
b1f88407 | 310 | #define v4l_compat_translate_ioctl(file, cmd, arg, ioctl) (-EINVAL) |
35ea11ff HV |
311 | #endif |
312 | ||
bec43661 | 313 | #ifdef CONFIG_COMPAT |
35ea11ff | 314 | /* 32 Bits compatibility layer for 64 bits processors */ |
9bb7cde7 | 315 | extern long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, |
35ea11ff | 316 | unsigned long arg); |
bec43661 | 317 | #endif |
35ea11ff | 318 | |
35ea11ff | 319 | /* Include support for obsoleted stuff */ |
069b7479 | 320 | extern long video_usercopy(struct file *file, unsigned int cmd, |
f473bf76 | 321 | unsigned long arg, v4l2_kioctl func); |
35ea11ff | 322 | |
8a522c91 | 323 | /* Standard handlers for V4L ioctl's */ |
069b7479 | 324 | extern long video_ioctl2(struct file *file, |
8a522c91 MCC |
325 | unsigned int cmd, unsigned long arg); |
326 | ||
35ea11ff | 327 | #endif /* _V4L2_IOCTL_H */ |